19946-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19946-77-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,4 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 19946-77:
(7*1)+(6*9)+(5*9)+(4*4)+(3*6)+(2*7)+(1*7)=161
161 % 10 = 1
So 19946-77-1 is a valid CAS Registry Number.